C++ Can'；t在OS X上编译Boost.log

我正在尝试构建并运行

Boost.log

的教程示例，并得到一个编译器错误，这让我很困惑，需要一些帮助。基本细节；我已经在OS X上构建了boost，包含了

boost.log

，但是当我试图编译任何教程示例时，我从boost日志的

'trial.hpp'

包含文件中得到了一个重载的

'operator>'

错误

据报告，这些错误位于中

log/utility/explicit\u operator\u bool.hpp

这是堆栈：

/usr/local/include/boost/log/utility/explicit_operator_bool.hpp:67:29: error: overloaded 'operator>>' must have at least one parameter of class or enumeration type [2]
In file included from /usr/local/include/boost/log/attributes/attribute_name.hpp:27:
In file included from /usr/local/include/boost/log/attributes/attribute_set.hpp:28:
In file included from /usr/local/include/boost/log/sources/basic_logger.hpp:37:
In file included from /usr/local/include/boost/log/sources/severity_logger.hpp:27:
In file included from /usr/local/include/boost/log/trivial.hpp:25:
In file included from /Volumes/Macintosh HD 2/code/Logging Tut   1/loggingTut1/loggingTut1/main.cpp:18:
Overloaded 'operator>>' must have at least one parameter of class or enumeration type in /usr/local/include/boost/log/utility/explicit_operator_bool.hpp

仔细看看周围是否有人有类似的东西，我什么也没发现——那么有人能解释一下我错过了什么或者问题出在哪里吗

详细信息：

我正在使用Xcode 4.0.2在OSX（10.6.8）上尝试这一点

我已经下载并构建了1_46_1 boost版本，该版本与我的主要基于boost的项目（使用boost Asio、boost线程等）配合得很好

Boost.log

还不在主版本中，因此我从sourceforge下载了它，如下所示：

我将

boost/log

目录从下载的分支复制到

boost\u 1\u 46\u 1/boost/log

目录，并将

libs/log

目录复制到

boost\u 1\u 46\u 1/libs/log

我删除了

/usr/local/include/boost

和

/usr/local/lib

中的所有boost内容，然后使用以下方法重新构建：

/bootstrap.sh--with libraries=all--prefix=/usr/local--includedir=/usr/local/include--libdir=/usr/local/lib

接

sudo./bjam安装>build.log

我检查了输出是否有错误，它看起来很干净-没有任何报告。我在

/usr/local

下有所有的boost库和标题。我检查了我的Asio项目，它在这个构建中运行良好（没有boost日志）。我为日志教程创建了一个新项目，设置了库路径和include路径，并将lboost_log添加到链接器选项中

当尝试使用Boost日志的教程程序时会出现问题-如Boost日志文档或svn文件中包含的示例所述

SVN的示例如下所示：

/*
 *          Copyright Andrey Semashev 2007 - 2011.
 * Distributed under the Boost Software License, Version 1.0.
 *    (See accompanying file LICENSE_1_0.txt or copy at
 *          http://www.boost.org/LICENSE_1_0.txt)
 */
/*!
 * \file   main.cpp
 * \author Andrey Semashev
 * \date   07.11.2009
 *
 * \brief  An example of trivial logging.
 */

// #define BOOST_ALL_DYN_LINK 1
// #define BOOST_LOG_DYN_LINK 1

#include <boost/log/trivial.hpp>
#include <boost/log/core.hpp>
#include <boost/log/filters.hpp>

int main(int argc, char* argv[])
{
    // Trivial logging: all log records are written into a file
    BOOST_LOG_TRIVIAL(trace) << "A trace severity message";
    BOOST_LOG_TRIVIAL(debug) << "A debug severity message";
    BOOST_LOG_TRIVIAL(info) << "An informational severity message";
    BOOST_LOG_TRIVIAL(warning) << "A warning severity message";
    BOOST_LOG_TRIVIAL(error) << "An error severity message";
    BOOST_LOG_TRIVIAL(fatal) << "A fatal severity message";

    // Filtering may also be applied
    using namespace boost::log;

    core::get()->set_filter
    (
        filters::attr< trivial::severity_level >("Severity") >= trivial::info
    );

    // Now the first two lines will not pass the filter
    BOOST_LOG_TRIVIAL(trace) << "A trace severity message";
    BOOST_LOG_TRIVIAL(debug) << "A debug severity message";
    BOOST_LOG_TRIVIAL(info) << "An informational severity message";
    BOOST_LOG_TRIVIAL(warning) << "A warning severity message";
    BOOST_LOG_TRIVIAL(error) << "An error severity message";
    BOOST_LOG_TRIVIAL(fatal) << "A fatal severity message";

    return 0;
}

---

所以，这有点像是在回答我自己的问题（因为它可能会帮助其他Xcode/OSX用户）

查看explicit_operator.bool.hpp文件，其中有一些条件代码，允许我们通过设置以下内容绕过问题模板：

#define BOOST_LOG_NO_UNSPECIFIED_BOOL

然后为我编译并运行教程

我不确定的是为什么需要这样做，或者下游可能会产生什么影响（请注意，像许多用户一样，我对一种快速有效的方法感兴趣，以获得一个轻量级日志框架，如果我们必须花时间研究框架的内部工作，它会使这一点无效……）

正如评论所说，它还不是一个受支持的图书馆，因此在现阶段期望过高可能是不公平的

---

Chris

boost:：log还不是受支持的boost库。因此，它不会在所有可能的平台和编译器上编译也就不足为奇了。。

/usr/local/include/boost/log/utility/explicit_operator_bool.hpp:67:29: error: overloaded 'operator>>' must have at least one parameter of class or enumeration type [2]
In file included from /usr/local/include/boost/log/attributes/attribute_name.hpp:27:
In file included from /usr/local/include/boost/log/attributes/attribute_set.hpp:28:
In file included from /usr/local/include/boost/log/sources/basic_logger.hpp:37:
In file included from /usr/local/include/boost/log/sources/severity_logger.hpp:27:
In file included from /usr/local/include/boost/log/trivial.hpp:25:
In file included from /Volumes/Macintosh HD 2/code/Logging Tut   1/loggingTut1/loggingTut1/main.cpp:18:
Overloaded 'operator>>' must have at least one parameter of class or enumeration type in /usr/local/include/boost/log/utility/explicit_operator_bool.hpp

#define BOOST_LOG_NO_UNSPECIFIED_BOOL